4437-514AD MINNESOTA RUBBER QUAD RING

The VQ4437 is an AS568-437 black Viton® (FKM) 75 Shore A quad profile Quad-Ring measuring an inside diameter of 5.975 in (151.77 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.525 in (165.74 mm). This quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

It resists engine and transmission fluids, petroleum oils and fuels, and chlorinated solvents. Viton® (FKM) is widely chosen for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with low-molecular-weight organic acids or ketones and esters.

Maintenance and OEM teams specify it across oil and gas, high-temperature process equipment, and semiconductor equipment.

Order part number VQ4437, sold individually. Nominal inside diameter is listed as 6 inch. Check the compound against your process media, pressure and temperature before committing to a design.